Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times geek bar pulse strawberry b pop JUUL Vape Pods 5% or 3% Nicotine Juicefly What Does A JUUL Really Do To Your Body? Franciscan Health Juul: "Excessively High" Nicotine in Pods Is Toxic to Cells, Says Scientist DYKOne Juul pod contains as much nicotine as a pack of cigarettes. Side effects include increased heart rate and blood pressure, lung disease, chronic bronchitis and insulin resistance leading to type 2